Mounting for printing machine color pans



July 2, 1940. H. L. BABSON 2,296,712

MOUNTING FOR PRINTING MACHINE COLOR FANS I I Filed Dec. 15, 1939 INVENTOR. fzfimzce Z. Babs-om BY J ' ATI'O 3 Patented July 2,1940

I UNITED STATES MOUNTING FOR PRINTING MACHINE Y COLOR PANS Horace L. Babson, Rock Bill, S. 0. Application December 15,1939, Serial No. 309,309 Claims. (Cl. 101-364) This invention'relates to printing machines, and more particularly to color pans and their mountings used in connection with textile printing machines.

Heretofore, the practice has been generally to secure the pan to the machine by means of large detachable clamps. In order to change the pattern being printed by the machine, it is necessary to remove the color pan and necessarily the holding clamps. These changes are apt to be frequent and the wear on the clamps is considerable. A wrench is required to tighten or loosen the set screws and the threads are soon stripped. The pressure of the clamps also warps 1 the pans and chews up the supporting members.

During the pattern changes there is the possibility of the clamps or the wrenches being misplaced, with the resultant loss of time. Occasionally the clamps work loose while the machine is in operation and the pan slips oil the supports,

resulting not only in the loss of expensive dye but of unprinted cloth passing through the machine before it can be stopped. These are some of the difliculties encountered in the normal operation of this type of printing machines and which are overcome by the present invention.

It is an object of the present invention, therefore, to provide novel means for mounting a color pan in connection with a printing machine which o will greatly increase the speed and facility with which the pan can be removed from and installed in operating position.

It is another object to provide supporting means which are simple in construction and inexpensive to manufacture.

It is a further object to provide supporting means which minimize the wear and strain on the various parts. i

It is another object to provide supporting m means for a color pan which will prevent the pan from becoming dislodged unintentionally.

It is a further object to provide efficient supporting means for a color pan which are readily adaptable to the ordinary printing machine with- 5 out necessitating any change in the construction of the color pan or the machineitself and which may be easily installed on the machine.

It is another object of this invention to provide means for supporting a color pan which will increase the operating efliciency of a printing machine and also improve its appearance.

These and other objects not specifically enumerated are contemplated for this invention, as will readily appear to one skilled in the art as the following description proceeds.

machine frame is of suitable construction for the accommodation of the operating mechanisms, and consists, essentially, of the end frames 5, one of which is omitted from the drawing for the sake of clearness. A large cylinder or boss roller 1 6 is provided with Journals I which are supported by the and frames 5. A printing roller 8 is jour' nailed in the split bearings 25. The block 26 is slidably mounted in an opening in the end frame and is moved toward the Journal 21 by the Jack 15 screw. 28 which is threaded through a portion of the end frame and engages theblock. The printing roller may be removed by unscrewing the jack screw. The block 26 moving away from journal 21 opens the split bearing 25, thereby permitting the roller to be lifted out. It is, of course, necessary to remove the color pan ii and furnisher I0, as described below, before the printing roller may be removed. The surface of the printing roller has the design engraved on it which is to u be transferred to the cloth 9 as it passes between rollers 6 and 8.

Furnisher. roller I0 is supported by the color pan I l which provides bearings I2 for the journals I3 of the furnisher. The color pan is provided go with flanges I4 adjacent the ends which are supported by the steps IS. The steps are provided with a U-shaped slot, and the upper member l8 and lower member i1 have a series of aligned openings IS. The flanges M are each provided 35 with an opening which, when positioned between corresponding openings l8 in members I6 and ll, are in alignment with them. When so aligned, a pin l9 may be passed through the openings. I The pin l8 has a shoulder 20 which prevents it w from passing all the way through the openings. This pin may be secured to the step with a chain 2| which will prevent it from being misplaced when not in use.

Step 15 is L-shaped and is supported adjacent 5 its upper end 22, which is threaded and freely passes through a lug 29 on the block 26. A wing nut 24 is screwed onto the threaded end above the lug. The step, together with the color pan and furnisher, may be raised or lowered by screw- 0 ing or unscrewing the nut 24.

In order to changethe printing roller 8 or the color in the color pan II, the pins I9, which pass through openings in the upper-members IS, the flanges ll of the color pan, and the lower mema here ii oi the steps, are lifted out, leaving the flanges it free to he slipped out oi the 1-,- i ended slots in the steps to. The iher roller may then lifted out of the pan and the color changed. arly, in replacing the iurnisher and pan, it is merely necessary to slide the flanges it into the slots formed by the upper and lower members it and il until the iurher is in the desired position, and then dropping pins l6 through the aligned openings. The position of the color pan may be varied by sliding it forward or back and dropping the pin in a difierent set or openings in the members it and ill. The color pan and iurnisher roller are held firmly in place and cannot work loose. It is necessary for the operator to remove the pins before the pan and iurnisher may be removed; consequently the possibility oi the pan becoming accidentally dislodged while the machine is in operation is eliminated.

It is to be understood that the particular shape of the step it and the means for securing it to the machine and adjusting its position with respect thereto, as disclosed in the drawing and specification, are only by way of illustration and that the present invention may be used in conand removable means passing through said first and second-named openings for maintaining the position of said flanges with respect to said members.

2.- In combination with a printing machine, a

- color pan having nges afiocent the thereof provided with openings, m for supporting said pan in operative position with "respect to said machine, comprising a pair of oppositely disposed steps having upper and lower members iorming slots to receive said flanges and having a plurality of aligned openings therein, and removable means for selectively maintaining the alignment of the openings in said flanges with those in said-members.

3. In combination with a printing machine, a color pan provided with extended end portions having an opening in each, means for removably supporting said color pan in operative position with respect to said machine, including upper and lower members forming-slots to receive said end portions and having a series of aligned openings therein, and removable means for selectively maintaining the openings in said end portions in alignment with the aligned openings 01' said upper and lower members.

a. In combination with a printing machine, a color pan having extended end portions with openings therein, means for removably supporting said-color pan in operative position with respect to' said machine, including steps underlying said end portions for supporting them, and being provided with openings therein, and removable means for maintaining the openings in saidend portions in alignment with those in the steps.

' 5'. In combination with a printing machine, a color pan member, a member for supporting said pan member in operative position with respect to said machine, portions forming slots and having openings therein provided by one of said members, means for-entering said slots and having openings therein provided bythe other of said members, and means for maintainingthe alignment of the openings in said slot-forming portions and said slot entering means.

HORACE L, BABSON. 

